A Symmetry Breaking Pattern in the SU(7) Grand Unified Model

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概要

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• A pattern of symmetry breaking is investigated systematically in the SU(7) GUM, in which the fundamental representation 7 of SU(7) consists of 5 of SU(5) and its two singlets with the opposite charges ±q(q=1/2). By analyzing the Higgs potentials as well as the masses of scalar and gauge bosons at each stage of symmetry breaking, we find, among other things, the following two results: (i) a breaking path with q=1/2, SU(7)→SU(4)_c×SU(3)_W×U(1) at M→SU(3)_c×SU(2)_W×U(1) at M_1→SU(3)_c×U(1)^<em> at M_w, is indeed realized, and (ii) the positivity of (mass)^2,s of physical scalars under the masslessness condition for the scalars which cause the symmetry breaking at the successive stages is surely guaranteed, in a finite range of the coupling constants of the Higgs potentials participating in the whole stages.

• 理論物理学刊行会の論文
• 1981-10-25

著者

• Umemura Isao

  Department Of Nuclear Engineering Faculty Of Engineering Kyoto University

• YAMAMOTO Katsuji

  Department of Nuclear Engineering Kyoto University

• UEMURA Isao

  Department of Nuclear Engineering Kyoto University

• YAMAMOTO Katsuji

  Institute of Field Physics, Department of Physics and Astronomy University of North Carolina

• UMEMURA Isao

  Department of Nuclear Engineering, Faculty of Engineering Kyoto University

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